sys_basher (1) Linux Manual Page

NAME

sys_basher – manual page for sys_basher version 2.0.2

SYNOPSIS

sys_basher [OPTIONS]

DESCRIPTION

sys_basher (c)2006-2015 Polybus Systems Corp., Westford, MA, USA

Sys_basher is a multithreaded hardware exerciser. Sys_basher tests CPU, memory and disk I/O reliability. It also measures low level system performance.

options:

-d,–disk

Run disk tests

-dmi filename

DMI binary file generated by dmidecode –dump-bin filename The DMI (BIOS) file allows sys_basher to determine which DIMM is bad The default DMI file is in /var/sys_basher/bios.bin

-du,–dutycyle

Dutycycle n Duty cycle in percent, the default is 100 Inserts Sleeps between tests to reduce the overall CPU duty cycle

-f,–fast

Skip the memory tests, just run the disk, fp and memory bandwidth tests.

-fp,–fp

Run floating point tests

-h,–help

Print this help message

-ho #,–hours #

Run for at least # hours.

-i,–int

Run integer tests

-l #,–loops #

Number of iterations.

-mb,–mbandwidth

Run memory bandwidth

-m,–mem [abprwv]

Run memory tests

No argument

Run all memory tests

a

Address = Data tests

b

Bank tests

p

Fixed pattern tests

r

Random data tests

w

Walking Ones/Zeros data tests

v

Bit reversed address tests

-mi,–minutes #

Run for at least # minutes.

-p n0..nx,–path n0..nx

Directory path(s) for the disk tests, upto 32 paths maybe specified. The default path is ./

-r name,–report name

Report file name, generate name.rpt and name_xx.csv. Default is sys_basher.rpt and sys_basher_xx.csv

-s,–swap

Force use of swap space. This option is incredibly slow.

-st,–stop

Stop on Error, Exits if error found.

-t,–totalmem #

Allocate total ram – (n * 1M) for testing. If -totalmem is not called then the free space is used.

-th #,–threads #

Maximum number of threads. Spawn 1-n threads, the default is the number of CPUs.

-ts #,–tstart #

Starting thread count, after the initial calibration pass loop from tstart to threads, the default is 1

-v,–verbose

Verbose, print detailed results, for memory tests prints address and data info for the first 16 errors, default is PASS/FAIL only.

-vv,–vverbose

Very Very verbose, for memory tests run a second check pass to help determine if it’s a read or write problem

-ve,–version

Version

The default is to run all tests unless at least one individual test group is selected. Report and log files:

The default report and log names are sys_basher.rpt and sys_basher.log The the default name can be overridden with the -r switch.

report_name.log

Running log. Syncs are executed after each test so that this file can be preserved up to the point of a crash.

report_name.rpt

Summary report file.

report_name_#_threads.csv

Comma separated report files for each thread count. These files can be read into a spreadsheet.

RHEL7/CentOS7/SL7 systems have an aggressive OOM killer which sometimes interferes with sys_basher.

You can disable the OOM killer for sys_basher by running (as root) sys_basher_disable_oom after starting sys_basher

Index